$1 Million Reward Announced For Information To Help Solve 1974 Murder

One of the state's biggest rewards has been announced for any information leading to a conviction over the murder of Maria Smith in 1974.

What you need to know

The 20-year-old's body was found inside her Randwick unit in 1974

Police say Maria Smith was bound, sexually assaulted and strangled with her own stockings

No one has ever been charged

NSW Police and the State Government have announced a $1 million reward for any information leading to a conviction over the murder of Maria Smith more than 40 years ago.

Maria Smith's body was found inside her Randwick unit on April 22, 1974. Police say the 20-year-old was bound, raped and strangled to death with her own stockings.

No one has ever been charged.

The student teacher was last seen alive inside her apartment on St Marks Road early that morning, getting ready for work with her husband. He left just after 7:30am -- and his wife was supposed to leave an hour later.

But detectives believe the young woman answered a knock at the door after her husband left. Police think the attacker asked for a pen and paper - before striking Maria when her back was turned.

Her husband, Steve Smith came home that evening to find his new wife dead in their bedroom.